Temporal-spatial Variation Characteristics of Drought in Summer Maize Growing Season in North China Plain Based on SPEI
WEI Xiaoyu1,2, HU Qi, MA Xueqing, ZHENG Shiran, TANG Xinning, ZHANG Yuying, PAN Xuebiao, HE Qijin
Journal of Arid Meteorology . 2018, (4): 554 -560 .  DOI: 10.11755/j.issn.1006-7639(2018)-04-0554